Staff Linux Kernel Engineer

Responsibilities

• Set the technical direction and own the roadmap for Crusoe’s Linux kernel team.
• Architect and lead kernel features, security patching infrastructure, deployment systems, and other critical projects through production and upstream contribution.
• Perform root-cause analysis across OS and hardware layers, lead kernel CVE triage and backporting, and build automated vulnerability-analysis tooling.
• Develop and review Linux kernel code for memory management, scheduling, networking, storage, GPU-related subsystems, and I/O.
• Design and implement low-latency, highly scalable virtualization technologies for GPU-accelerated AI and HPC workloads across hypervisors and device emulation.
• Develop proactive kernel efficiency improvements, including DAMON-based memory management, hugepage optimization, and memory overcommit.
• Mentor and review the work of mid-level and junior engineers.

Requirements

• 10+ years of systems software engineering experience on low-level systems or infrastructure teams.
• Deep knowledge of Linux kernel internals, including memory management, scheduling, networking, storage, I/O, and/or device drivers.
• Strong C programming skills and fluency with the kernel development workflow, including patch submission, mailing lists, and Lore.
• Experience evaluating kernel security vulnerabilities through CVE analysis, exploitability assessment, and backporting fixes.
• Demonstrated ability to set technical direction and drive projects end-to-end.
• Deep knowledge of virtualization technologies such as KVM, Xen, or QEMU.
• A track record of upstream Linux kernel contributions is strongly preferred.

Benefits

• Competitive compensation, bonus eligibility, equity packages, and Restricted Stock Units.
• Paid time off, paid holidays, and leave-of-absence programs.
• Comprehensive health, dental, and vision insurance, plus employer HSA contributions.
• Paid parental leave, paid life insurance, and short- and long-term disability coverage.
• Professional development, tuition reimbursement, and mental health and wellness support.
• Commuter benefits, cell phone stipend, 401(k) plan with company match up to 4% of salary, volunteer time off, global travel insurance, daily meal allowance, and location-specific perks.